Adaptive time-frequency spreading of quasi-orthogonal block codes for MIMO-OFDM systems
This paper describes a novel low complexity time-frequency spreading of orthogonal block codes for MIMO-OFDM systems in highly time and frequency selective channels. The space-time codes (STC) and space-frequency codes (SFC) proposed in literature for MIMO-OFDM systems require a quasi-static channel, where the channel is assumed to be constant over a number of OFDM time symbols or OFDM subcarriers. In orthogonal block codes (OBC) this is equal to the number of transmit antennas Nt employed. For...[Show more]
|Collections||ANU Research Publications|
|Source:||Tenth IEEE International Conference on Communications Systems|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.